SB2020040169 - Gentoo update for GPL Ghostscript

Main Vulnerability Database SB2020040169

SB2020040169 - Gentoo update for GPL Ghostscript

Published: April 1, 2020 Updated: June 20, 2025

Security Bulletin ID SB2020040169

CSH Severity

High

Patch available

YES

Number of vulnerabilities 8

Exploitation vector Remote access

Highest impact Code execution

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 8 vulnerabilities.

1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-10216)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to access arbitrary files on the system.

The vulnerability exists due to an error within the .buildfont1 procedure when making privileged secure calls. A remote attacker can create a specially crafted PostScript file, trick the victim into opening it, bypass the ‘-dSAFER’ restrictions and access arbitrary file on the system.

2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-14811)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to unrestricted access to .forceput in .pdf_hook_DSC_Creator. A remote attacker can create a specially crafted PDF file, trick the victim to open it and gain access to arbitrary files on the system.

3) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-14812)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to unrestricted access to .forceput in setuserparams. A remote attacker can create a specially crafted PDF file, trick the victim to open it and gain access to arbitrary files on the system.

4) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-14813)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to unrestricted access to .forceput in setuserparams. A remote attacker can create a specially crafted PDF file, trick the victim to open it and gain access to arbitrary files on the system.

5) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-14817)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to unrestricted access to .forceput in setuserparams. A remote attacker can create a specially crafted PDF file, trick the victim to open it and gain access to arbitrary files on the system.

6) Exposed dangerous method or function (CVE-ID: CVE-2019-3835)

CWE-ID: CWE-749 - Exposed Dangerous Method or Function

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due presence of superexec operator within the internal dictionary. A remote attacker can create a specially crafted PDF file, trick the victim into opening, bypass system restrictions of the dSAFER sandbox and access files on the system.

7) OS Command Injection (CVE-ID: CVE-2019-3838)

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when processing PostScript files with Ghostscript. A remote attacker can create a specially crafted PDF file, trick the victim to open it and execute arbitrary commands on the affected system.

8) Command Injection (CVE-ID: CVE-2019-6116)

CWE-ID: CWE-77 - Command injection

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The vulnerability exists due to leak of sensitive operators on the operand stack when a pseudo-operator pushes a subroutine. A remote unauthenticated attacker can supply a specially crafted PostScript file to escape the -dSAFER protection, gain access to the file system and execute arbitrary commands.

Remediation

Install update from vendor's website.

References